[DOCS]: Add a page on how unique ids / iSerialNumber works and why it is important

[Psychlist1972]

Have a more user-friendly description at the top and more optional details below that.

Link to this from the endpoint personalization pages whenever this comes up

Suggested here: https://discord.com/channels/980245825202552942/1503396764261027990

This is the developer-focused iSerialNumber blog post: https://devblogs.microsoft.com/windows-music-dev/the-importance-of-including-a-unique-iserialnumber-in-your-usb-midi-devices/